Tuple Practice Lab
Apply your knowledge of tuples with these hands-on challenges. Each problem includes a detailed explanation of the solution.
Challenge 1: Variable Swapping
This is the classic Pythonic use of tuple unpacking.
Pyground
Swap the values of two variables, `a` and `b`, without using a temporary variable.
Expected Output:
Before -> a: first, b: second After -> a: second, b: first
Output:
Challenge 2: Function Returning Multiple Values
It’s a common pattern for functions to return multiple results as a tuple. Unpacking makes it easy to capture these results.
Pyground
Write a function that analyzes a list of numbers and returns a tuple containing the minimum, maximum, and average. Unpack the result into separate variables.
Expected Output:
Data: [10, 20, 5, 15, 25] Min: 5, Max: 25, Average: 15.00
Output:
Challenge 3: Processing Records with Unpacking in a Loop
Unpacking is extremely powerful inside for loops when iterating over a list of tuples.
Pyground
Given a list of (city, temperature) tuples, print a formatted report for cities where the temperature is above 25 degrees.
Expected Output:
Hot Cities Report: - Mumbai: 29°C - Bengaluru: 27°C - Chennai: 31°C
Output:
Challenge 4: Using a Named Tuple for Readability
Improve data access by using collections.namedtuple to create readable, self-documenting records.
Pyground
Define a 'Book' named tuple with fields 'title', 'author', and 'year'. Create a list of Book objects and print their details.
Expected Output:
'1984' by George Orwell, published in 1949. 'Brave New World' by Aldous Huxley, published in 1932.
Output:
Challenge 5: Sorting with a Composite Key
Use tuples as keys for sorting a list based on multiple criteria.
Pyground
Sort a list of files first by file type ('mp4', 'jpg', 'txt') and then by size (ascending).
Expected Output:
photo.jpg | 1500 bytes image.jpg | 2100 bytes video.mp4 | 5400 bytes document.txt | 800 bytes